MISO files interconnect deal for new gas-fired peaker of Prairie Power

The Midcontinent Independent System Operator filed on April 12 at the Federal Energy Regulatory Commission a Generator Interconnection Agreement with Prairie Power Inc.–Generation Function as a power project developer, and Prairie Power Inc.–Transmission Function as the interconnecting transmission owner.

MISO has designated this as Project No. J291 in its interconnection queue.

The plant is to be composed of six gas-fired combustion turbines, five of which are already in place:

  • Alsey 1, Westinghouse 251B model, 31 MW;
  • Alsey 2, Westinghouse 251B, 31 MW;
  • Alsey 3, General Electric LM2500, 18 MW;
  • Alsey 4, GE LM2500, 18 MW;
  • Alsey 5, Westinghouse 251AA, 25.8 MW; and
  • Alsey 6, GE LM6000, 45 MW.

The scheduled commercial operation date for the new Unit 6 under this agreement is June 1, 2016.

Project contact information is: Prairie Power Inc., Attn: VP Regulatory & Market Affairs, 3130 Pleasant Run, Springfield, IL 62711.

The Illinois Environmental Protection Agency in August 2015 issued a final air permit allowing Prairie Power Inc. to construct an additional combustion turbine generator at its existing peaking plant near Alsey, Ill. The permitted project will involve installation of another combustion turbine driving an electrical generator in a simple cycle configuration. This unit would be an existing unit that is to be refurbished and transported to the facility. This “new” unit would have a nominal capacity of 44 MWe under summer conditions and 48 MWe under winter conditions. This “new” unit is a General Electric combustion turbine, Model LM6000, with a nominal rated heat input capacity of 467 mmBtu/hour.

Said the website of Prairie Power Inc. (PPI): “Owned and operated by PPI, the Alsey Generation Station consists of five (5) natural gas-fired, peaking generators located in Scott County, IL. The facility entered service in June 1999 and has an aggregate capacity rating of 121 MW. PPI is developing a sixth unit at this site, a simple-cycle 42 MW GE LM6000 PC Sprint, which is scheduled to begin commercial operation in June 2016. The LM6000 will also burn natural gas with the alternative for distillate fuel oil as a backup source.”

About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.